Evernote posses default function to export notes as PDF documents which works fairly well. Whenever it also can be used for Evernote databases for some export purposes could not be verified, however it is likely possible.
Convert Evernote database file to Adobe Portable document format.
We found 2 software records in the database related to .exb to .pdf file format conversion.
Microsoft Windows software - convert exb to pdf on Windows
A small and handy program for quick notes
Convert from exb file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned exb to pdf. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert exb to pdf on OS X
Mac version of the popular note making app